Journal
ACS PHOTONICS
Volume 7, Issue 5, Pages 1163-1170Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.9b01779
Keywords
fractional orbital angular momentum; micropillar; phase jump; polariton condensate; polariton current
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Funding
- Westlake University [041020100118]
- Leading Innovative and Entrepreneur Team Introduction Program of Zhejiang [2018R01002]
- Russian Federation [MK-2839.2019.2]
- Russian Foundation for Basic Research (RFBR) [19-52-12032]
- Saint-Petersburg State University [51125686]
- Russian Science Foundation [19-72-20120]
- EU Regional Development Fund
- Greece Polisimulator project
- Russian Science Foundation [19-72-20120] Funding Source: Russian Science Foundation
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We create exciton-polariton condensates in half-moon shapes by the nonresonant optical excitation of GaAs-based cylindrical pillar microcavities. In this geometry, the pi-jump of the phase of the condensate wave function coexists with a gradual +/- pi phase variation between two horns of the half-moon. We switch between clockwise and counterclockwise phase currents by slightly shifting the excitation spot on the surface of the pillar. Half-moon condensates are expected to reveal features of two-level quantum systems similar to superconducting flux qubits.
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